Library /sys$common/syshlp/latcp$help.hlb SET, LINK, Qualifiers, /STATE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /STATE=option

    Specifies availability of the link for use. The two options for
    STATE are:

    ON       Specifies that the link will be available for use with
             the LAT protocol running.
    OFF      Specifies that the link will not be available for use.

    If you do not specify the /STATE=option qualifier, the default is
    that the link will be available (ON).